How to chart temperature

How do I take my temperature when fertility charting?

There are a few guidelines to follow when taking your basal body temperature (BBT) to make sure
you get the best interpretation on your chart.

Take your temperature as soon as you wake up in the morning, before doing anything
else.

Take your temperature at the same time every morning, or as close to the
same time as possible. Note the time if you are not recording it right away. (Fertility Friend can automatically record the time when you enter it.)

Your Basal Body Temperature (BBT) is a critical fertility sign because it is the best sign to confirm ovulation and pinpoint your ovulation date with a high degree of precision. This is because your BBT responds to the hormone progesterone, which is only present in high amounts after ovulation.

When you consistently record your BBT, you can see that temperatures are relatively lower before ovulation and higher after ovulation. Once a few higher temperatures are observed, ovulation can be identified for the day before your temperature rise.